socket: inet -- Add test if we can convert soket at all

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
io: Add lseek_safe helper

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
socket: Convert TCP queues

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
test: Update socket-tcp

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>